twitchdl.sh

#!/bin/sh
CHANNEL=$1

while true; do

        OUTPUT="./$CHANNEL-$(date +%Y-%m-%d).flv"

        if [ -f $OUTPUT ]; then
                for i in `seq 1 99`; do
                        filename="$OUTPUT.$i"
                        if [ ! -f "$filename" ]; then
                                mv "$OUTPUT" "$filename"
                                break
                        fi
                done
        fi

        echo $OUTPUT
        livestreamer -f -o "$OUTPUT" "twitch.tv/$CHANNEL" 720p
        sleep 30
done